var id_AtD_plugin = {};

id_AtD_plugin.add_button = function()
{
   id_add_plugin_button('javascript:id_AtD_plugin.check_writing(0)', 'javascript:id_AtD_plugin.check_writing(1)', 'http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif', 'Proofread Comment w/ After the Deadline', 'AtD', 'Check Spelling');
};

id_AtD_plugin.restore_edit_comment = function(button_selector, field_id)
{
   AtD.remove(field_id);

   var style = jQuery('#' + field_id).attr('style');
   jQuery('#' + field_id).replaceWith('<textarea class="idc-text_noresize" id="' + field_id +'">' + jQuery('#' + field_id).html() + '</textarea>');
   jQuery('#' + field_id).attr('style', style);

   jQuery(button_selector).text('Check Spelling');
};

id_AtD_plugin.check_writing = function(field)
{
   /* Choose your destiny: the main comment box or the reply comment box */

   var field_id, button_selector;

   if (field == 0)
   {
      field_id = 'IDCommentNewThreadText';
      button_selector = '#idc-plugin-buttons-new-thread > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span';
   }
   else
   {
      field_id = 'txtComment';
      button_selector = '#idc-plugin-buttons-reply > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span';
   }

   /* restore or spellcheck the field... it all depends on the text of the AtD button associated with the form */

   if (jQuery(button_selector).text() == 'Edit Comment')
   {                               
      id_AtD_plugin.restore_edit_comment(button_selector, field_id); 
   } 
   else 
   {
      jQuery(button_selector).text('Edit Comment');

      var style = jQuery('#' + field_id).attr('style');
      jQuery('#' + field_id).replaceWith('<div class="idc-text_noresize" id="' + field_id + '">' + jQuery('#' + field_id).val() + '</div>');
      jQuery('#' + field_id).attr('style', style);

      AtD.checkCrossAJAX(field_id, 
      {
         success : function(errorCount) 
         {
            if (errorCount == 0)
            {
               alert("No writing errors were found");
            }
            id_AtD_plugin.restore_edit_comment(button_selector, field_id); 
         },

         error : function(reason)
         {
            alert("There was an error communicating with the spell checking service.\n\n" + reason);
         }
      });
   }
};

id_AtD_plugin.fix_form = function(text)
{
   /* this is a hack that exists to remove the AtD markup and turn the preview DIV back into a textarea if the user hits submit while in the middle of spellchecking. */

   if (text != undefined)
   {
      return text;
   }
   else if (jQuery('#idc-plugin-buttons-reply > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span').text() == 'Edit Comment')
   {
      id_AtD_plugin.restore_edit_comment('#idc-plugin-buttons-reply > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span', 'txtComment');

      setTimeout(function() 
      { 
         jQuery('#IDCommentNewThreadText').css({ color: 'black' }); /* this is on purpose, the main one gets set to grey for reasons unknown to me. */
         jQuery('#txtComment').css({ color: 'black' });
      }, 501); 

      return jQuery('#txtComment').val();
   }
   else if (jQuery('#idc-plugin-buttons-new-thread > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span').text() == 'Edit Comment')
   {
      id_AtD_plugin.restore_edit_comment('#idc-plugin-buttons-new-thread > li > a > img[src="http://static.afterthedeadline.com/atd_jquery/images/atdbuttontr.gif"] + span', 'IDCommentNewThreadText');
      setTimeout(function() { jQuery('#IDCommentNewThreadText').css({ color: 'black' }); }, 501);
      return jQuery('#IDCommentNewThreadText').val();
   }
   else
   {
      return "";
   }
};

id_AtD_plugin.init_plugin = function()
{
   var atd_api = ['atd_jquery/css/atd.css', 'atd_jquery/scripts/jquery.atd.js', 'atd_jquery/scripts/csshttprequest.js', 'atd_id/id.css'];

   /* load some helpful JS and CSS for AtD/ID */
   for (var i = 0; i < atd_api.length; i++)
   {
      if (atd_api[i].substr(atd_api[i].length - 4) == '.css')
      {
         s = document.createElement('link')
         s.rel = 'stylesheet';
         s.type = 'text/css';
         s.media = 'screen';
         s.href = 'http://static.afterthedeadline.com/' + atd_api[i];
         document.getElementsByTagName('head')[0].appendChild(s);
      }
      else if (atd_api[i].substr(atd_api[i].length - 3) == '.js')
      {
         s = document.createElement('script')
         s.src = 'http://static.afterthedeadline.com/' + atd_api[i];
         document.getElementsByTagName('head')[0].appendChild(s);
      }
   }

   /* load jQuery if it isn't already loaded */
   if (typeof jQuery == 'undefined')
   {
      s = document.createElement('script');
      s.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js';
      document.getElementsByTagName('head')[0].appendChild(s);
   }
};

id_add_filter('pre_comment_text', id_AtD_plugin.fix_form, 0);
id_add_action('idcomments_func_load', id_AtD_plugin.init_plugin);
id_add_action('idcomments_func_load', id_AtD_plugin.add_button);